Ok so I have a ipad 2 my brother gave me and the digitizer was demolished so I purchased a new one. When I went to install it I removed old digitizer with hear dryer removed screen. I unscrewed where the motherboard makes contact with power then I installed it then did a test on the screen to make sure everything is hooked up correctly. So I put pressure on the the motherboard where it makes contact to the battery pins and then clicked the home button. The screen had these strange grey lines that would move down the screen then disappear half way down. So I messed with the lcd cable and made a assumption that I must have broken the cable on acedent so I ordered a new one and tried it with a new one and had the same problem. I have checked and everything is hooked up corectly. Its not a complicated device. I build computers so this is very simple to me. I have fixed many ipad digitizers in the past